title: Thermoelectric performance of SrTiO3 enhanced by nanostructuring-self-assembled particulate film of nanocubes.
abstract: Self-assembled particulate films with a uniform structure over a large area were prepared from La-SrTiO3 nanocubes for thermoelectric applications. UV irradiation was used to assist the formation of particulate film for decomposition of the organic phase in situ to obtain a mechanically robust structure at high temperature. The thermoelectric properties of the particulate film were measured after calcination at 1000 °C under a reductive atmosphere (Ar/H2 = 60/40). A Seebeck coefficient of S = -239 ± 24 μV/K, electrical conductivity of σ = 160 ± 5 S/cm, and thermal conductivity of κ ≈ 1.5 W/mK were obtained for a self-assembled particulate film (La: 5%) corresponding to a ZT value of 0.2 at room temperature, which exceeded that of a La-SrTiO3 single crystal with similar composition.
authors.affiliation: Graduate School of Engineering, Nagoya University , Nagoya 464-8603, Japan.
authors.forename: Feng
authors.initials: F
authors.lastname: Dang
authors.forename: Chunlei
authors.initials: C
authors.lastname: Wan
authors.forename: Nam-Hee
authors.initials: NH
authors.lastname: Park
authors.forename: Kazuki
authors.initials: K
authors.lastname: Tsuruta
authors.forename: Won-Seon
authors.initials: WS
authors.lastname: Seo
authors.forename: Kunihito
authors.initials: K
authors.lastname: Koumoto